Problem: Waterborne pathogens can cause serious disease outbreaks. Drinking water disinfection forms the final barrier between these pathogens and humans. For drinking water disinfection, ultraviolet (UV) light has proven to be the best method for inactivation of Cryptosporidium parvum and Giardia lamblia parasites found in natural waters. Organic matter and suspended particles in water absorb and scatter UV light, interfering with pathogen inactivation by UV irradiation.

Studies have proven that chlorine use has negative consequences due to the formation of byproducts, i.e. chlorinated organic compounds and chloramines. Irritation of eyes and mucous membranes, drying out the skin as well as “chlorine smell” are well known troubles. However, these byproducts also accelerate the corrosion in pool halls and significant risk is given by their toxicity (chloramines, combined chlorine) and/or carcinogenicity. Higher rate of asthma prevalence is one of the consequences. These are the reasons why the combined chlorine content - as a marker of chlorination byproducts presence - is to be monitored and why its limit values are specified by authorities. To meet the limits can be tedious and expensive because more water has to be changed and heated up. Chlorine disinfection is not sufficient to prevent infections caused by some waterborne pathogens as dangerous protozoan parasites Cryptosporidium parvum and Giardia lamblia.

The Q-SEP Ultrafiltration membranes incorporate high-strength, hollow fibers that deliver superior performance without the risk of fiber breaks. They are made from a hydrophilic polyether sulfone material with excellent low fouling characteristics. These hollow fiber membranes operate under a pressurized inside-out flow configuration for superior performance. These hollow fiber UF membranes offer reliable removal of turbidity, microorganisms & viruses. Turbidity can be reduced to less than 0.05 NTU. Typically, a 6-log removal for bacteria, giardia & cryptosporidium, while a 4-log removal for viruses, can be achieved. The Q-SEP modules contain an advanced UF fiber, prepared by an innovative patented cloud point precipitation method. This method ensures a very uniform pore size distribution and high pore density in the membrane. As a result, the product water quality from the modules is significantly better than the quality from conventional UF modules at a very operating pres

The Q-SEP Ultrafiltration membranes incorporate high-strength, hollow fibers that deliver superior performance without the risk of fiber breaks. They are made from a hydrophilic polyether sulfone material with excellent low fouling characteristics. These hollow fiber membranes operate under a pressurized inside-out flow configuration for superior performance. These hollow fiber UF membranes offer reliable removal of turbidity, microorganisms & viruses. Turbidity can be reduced to less than 0.05 NTU. Typically, a 6-log removal for bacteria, giardia & cryptosporidium, while a 4-log removal for viruses, can be achieved. The Q-SEP modules contain an advanced UF fiber, prepared by an innovative patented cloud point precipitation method. This method ensures a very uniform pore size distribution and high pore density in the membrane. As a result, the product water quality from the modules is significantly better than the quality from conventional UF modules at a very operating pressur

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